### Mathematics 4th ESO

# Our School Project

GEP (GEneraciÃ³ PlurilingÃ¼e) - First Year

## About the Project

### Two hour lesson plans

1. Contest of measures.

2. Classifying equations depending on the number of solutions.

3. Solving equations and polynomial long division.

## 1. Contest of measures

Working in groups of 4 or 5

Training:

Using the measuring instruments (tape measure, containers, weighing scales, chronometer and protractor), the students have to get familiar with the basic measures.

Test:

The students have to:

-Cut a string of length 1 m.

-Fill a container with a litre of water.

-Fill a bag with 1kg of sand.

-Calculate 1 minute.

-Draw an angle of 30Âº.

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Estimations:

Working in the playground, the students have to estimate the following lengths without the measuring instruments.

-The length, width and area of â€‹â€‹the ping-pong table.

-The volume of a glass.

-The weight of a dictionary.

-The time that a student takes while walking from one bench to the other.

-The angle formed by the branches of the olive tree.

After their estimations they have to compare their results with the real ones and comment them with their classmates.

*They can not use any of the measuring instruments.

## 2. Classifying equations depending of the number of solutions

Review how to solve a linear and a second degree equations and classifying equations depending on the number of solutions.

The students will complete the undertanding on basic equations.

They will be able to analyze equations.

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- Matching conditions to write sentences to predict the number of solutions of equations.

-Writing conclusions and expressing conditions.

- Organizing flashcards they will have a mindmap of how to solve second degree equations and then they will write the final production: an instructive text explaining how to solve a second degree equation and the number of solutions it will have.

## 3. Solving equations and polynomial long division

Students divided in groups of four, have to make a presentation to their classmates about solving equations. Each group have to prepare a lesson about a different kind of equation.

They have to distribute the different roles: Maths expert, secretary, public relations and ITC expert.

They will be teachers for one day!

## Evidences

A day at class!